<template>
    <div class="login_container">
        <div class="login_box">
            <!--头像区域-->
       <div class="avatar_box">
           <img src="../assets/logo.png" alt="">
       </div>
       <!--登录区域-->
       <el-form ref="loginFormRef"  :model="loginForm" :rules="loginFormRules" class="login_form">
           <!--用户名-->
         <el-form-item prop="username">
           <el-input   v-model="loginForm.username" prefix-icon="iconfont icon-user"></el-input>
         </el-form-item>
         <!--密码-->
         <el-form-item prop="password">
           <el-input v-model="loginForm.password" prefix-icon="iconfont icon-3702mima" type="password"></el-input>
         </el-form-item>
         <!--按钮区域-->
         <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
         </el-form-item>
       </el-form>
        </div>
    </div>
</template>
<script>
export default {
    data:function(){
        return{
            //这是登录表单的数据绑定对象
            loginForm:{
                username:"admin",
                password:"123456"
            },
            //这是表单的验证规则对象
            loginFormRules:{
              //验证用户名是否合法
              username:[
                  {required: true, message: '请输入登录名称', trigger: 'blur'},
                  { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur'}
                  ],
              //验证用户名是否合法
              password:[
                  {required:true,message:"请输入登录密码",trigger:"blur"},
                  {min:6,max:15,message:"长度在6到15个字符",trigger:"blur"}
              ]
            }
        }
    },
    methods:{
        //点击重置按钮，重置登录表单 
        resetLoginForm(){
         this.$refs.loginFormRef.resetFields();
        },
        login(){
            this.$refs.loginFormRef.validate(async  valid =>{
               if(!valid) return;
            const {data:res} =await this.$http.post('login',this.loginForm);
              if(res.meta.status!==200) return this.$message.error('登录失败！');
              this.$message.success('登录成功')
              console.log(res);
              window.sessionStorage.setItem('token',res.data.token);
              this.$router.push("/home");
            });
        }

    }
}
</script>

<style lang="less" scoped>
.login_container{
    background-color: #2a4b6b;
    height: 100%;
} 
.login_box{
    width: 450px;
    height: 300px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%,-50%);
}
.avatar_box{
    height: 130px;
    width: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #eee;
    position: absolute;
    left: 50%;
    transform: translate(-50%,-50%);
     background-color: #fff;
    img{
        width: 100%;
        height: 100%;
        border-radius: 50%;
        background-color: #eee;

    }}
.btns{
    display: flex;
    justify-content: flex-end;
}
.login_form{
    position: absolute;
    bottom: 0;
    width: 100%;
    padding:0 20px;
    box-sizing: border-box;
}

</style>